Combing-machine



J. W. NASMITH.

COMBINE MACHINE.

APPUCATiON FILED mvzr. 1919.

1,367,076. Patented Feb. 1,1921. 0

5r ms arrow/95m- UNITED STATES JOHN w. NASMI'I'H, or ivianonnsrnn, nneLANn COMBING-MACHINE.

Specification of Letters Patent.

Patented Feb. 1, 1921.

Application filed May 27, 1919. Serial No. 300,115.

To all whom it may concern Be it known that 1, JOHN VVILLrAM NA- SMITH, of Leegate, Mauldeth Road,l-1eaton Mersey, h lanchester England, have in vented certain new and useful Improvements in Comhing-lllachines, of which the following is a specification.

In the now well known Nasmith combing machine the feed is madeby means of a fluted roller having an intermittent forward rotation in hearings fixed in relation to the nipper plate, the roller resting on the material and pressing it against the said plate. This method is open to one objection especially when feeding forward such material as a thick lap of short cotton. Such a lap is composed of layers of fibers superposed one upon the otherand building up a considerable thickness and it happens that when the fluted roller revolves the material in contact with the flutes moves forward with the flutes while the lower layers in conforward sufliciently, notwithstanding the smoothness of the plate, to keep pace with the upper layers and by degrees this retardation of the lower layers causes an accumulation and bunches of material which, from timeto time are carried through and tend to damage the needles and give rise to uncomhed patches of material passing into thefieece to the detriment of thework.

The object of my invention is to overcome this defect. To do Sol mount the roller in bearings which are movable to and fro in relation to the nipper plate. As the nipper moves forward toward the detaching roller, the fluted feed roller gripping the material between itself and the plate is pushed forward bodily onthe plate while suitable means are employed to prevent it from revolving when moving in this direction so that it and thematerial beneath it are simply pushed forward on the plate the required amount. When the nipper makes its return movement the roller is released and simply rolls back over the material to its initial position ready for the next stroke, so that if the lower layers have not quite kept pace with the upper ones, the roller rolls over them and no accumulation takes, place, the error being corrected each stroke; a

In order thattheinvention may bebetter understood a sheet of drawings isappended showing one method in which the regulsite movement of the roller may be obtamed. Figure 1 is an end elevation of a nipper constructed according to my United States Letters Patent No. 72%,119 to which the invention is applied and Fig. 2. that of a nipper constructed according to my British Letters Patent No. 387l/1 l to which the inventlon is applied and it will be understood that it may he applied to other forms. In the form of my invention illustrated in Fig. 1 A is the cylinder shaft on which is mounted the cylinder A. D is the detaching roller. N is a pivot fixed in the framing of the machine on which apair ofnipper arms (one at either end of the nipper) N, bound together by the bridge B. oscillate, so that the studs S carried one in each arm N, travel to and fro from S to S along the dotted are (10. F. is the feed roller resting on the nipper plate P and carrying,

levers F which fork the feed roller at each end. But in thearrangement shown in Fig. 2. the studs P are not used hutspecial pins Pare fixed in the nlpper frame. The feed levers F have formed in them slots H to receivethe pins G, fixed in one end of the cranked levers L, which pivot freely on the studs S fixed 1n the nipper arms N. It will be understood that all these levers are in pairs, one at each end of the nipper. One of the levers F has cast uponit the projection F to which is pivoted a pawl X engaging with the ratchet E. LeversV suitably pivoted and weighted in the usual manner press constantly on the levers F and keep the roller Ffirmly down on the material between it and the plate P7 It is obvious that ifthe'levers F be m o ved to the left the roller F will roll freely over the plate, but if moved'in the opposite direction, the pawl X engagingwith the teeth of the ratchet E will prevent the roller from turning so that it-is simply pushed along the plate.

R. is a rod fixed in the framing of the machine and hinging on it a rod T, provided with adjusting nuts T T passes through the swivels W, which hinge freely on the pins I. Thesepins I can be fixed in anyposition in the slots 0, formed in the levers L, which pivot freely on thestuds fixed on one end the ratchet wheel E IX engaging with a ratchet E S. Y As the studs S travel along the are C. C to the position S the pins I move along the arc Y. Y having R as center, to the position I The levers L consequently turn on the studs S until the pins G assume the position G and draw back the feed levers F the reverse taking place as the studs move forward from S to S. The position of the roller F on the plate I can be adjusted by the nuts T T and the amount of its displacement, that is the amount of feed can be varied by varying the position of the studs I in the slots 0.

In the form of my invention illustrated in Fig. 2, A is the cylinder shaft on which is mounted the cylinder A. D is the detaching roller. N is a pivot fixed in the framing of the machine of which a pair of nipper arms (one at either end of the nipper) N, bound together by the bridge B oscillate so that the studs S carried one in each arm N .'travel to and from S to S along the dotted are C. C. F is the feed roller resting on the nipper plate P and carrying The feedlevers F have formed in them slots H to receive the pins G fixed in one end of the studsS fixed in the nipper arms N It will-be understood that all these levers are in pairs, one at each end of the nipper. One of-the levers F" has cast upon it the projection F to which is pivoted a pawl Spring weighted levers V suitably pivoted and .weighted in the usual manner press constantly on the levers F and keep the roller F firmly down on the material between it and the plate P It is obvious that if the levers F be moved to the right the roller F will roll freely over the plate, but if moved in the opposite direction, the pawl X engaging with the teeth of the ratchet -E will prevent the roller from turning so that it is simply pushed along the plate.

In Fig. 2 the studs S fixed in the nipper arms N travel ashort distance along the dotted are C. C' passing through the center of S, the amplitude of this oscillation being shown by the dotted radii C C The studs I travel along the inner and shorter are and have hinged upon them the rods T passing through bell-mouthed holes in the fixed bar It. On the rods T are adjusting nuts T T above and below the bar As the studs I descend along their arc no movement 'of the parts takes place until the descent of T is arrested by the nuts T coming in contact with the bar R. I is then arrested while S continues and lever L turns on S and as described in the former case, moves the feed levers F forward. The position of the roller F on the plate P is regulated by the position of the nutsT T on the rod T and the amplitude of its movement on the plate by the distance between the nuts.

What I claim and desire to secure by Letters Patent is 1. In a combing machine, a plate on which the material to be combed rests, a roller mounted to move back and forth along said plate in proximity thereto, and being adapted to move forwardly without rotation and to roll back over said fiber to its initial position.

2. In a combing machine, a plate on which the material to be combed rests, a roller mounted to move back and forth along said plate in proximity thereto to feed the material resting thereon, means associated with said roller whereby it is prevented from rotating during its forward movement in feeding said material and is permitted to rotate during its return movement.

3. In a combing machine, a plate on which the material to be combed rests, a roller for feeding the material forwardly along said plate, bearings adapted to reciprocate back and forth along said plate in which said roller is mounted, a ratchet-wheel rigidly connected with said roller and a ratchet 00- operating therewith in such manner that when the roller is moved forwardly along said plate, said roller is prevented from rotating on its axis but is permitted to rotate during its backward stroke to facilitate its passage over said material.

4. In a combing machine, a nipper frame pivotally mounted thereon for oscillation, a plate rigidly mounted on said nipper frame on which the material to be combed rests, levers pivoted by means of studs intermediate of its ends to said frame, a feed roller suitably connected with said lever and adapted to rest on said material and to be reciprocated thereon to feed said material along said plate, a rod connected to the opposite end of said levers and means on said rod for regulating the position of the roller on the plate and the amount of the feed thereof.

5. In a combing machine, a nipper frame pivotally mounted thereon for oscillation, a plate rigidly attached to said nipper frame on which the material to be combed rests, a lever pivoted intermediate of its ends to said frame, a feed roller carrying member attached to one end of said levers and adapted to be reciprocated adjacent said plate, a feed -roller mounted in said member and adapted to rest on said material, a rod adjustahly and pivotally attached to the opposite end of said lever whereby the position of the roller at any time in the movement of said frame is determined and said levers having slots therein, and a stud on said rod extending into said slots whereby the length of the path of movement of said roller may be regulated.

6. In a combing machine a nipper frame pivotally attached thereto, a plate rigidly attached to said frame upon which the material to he combed rests, a lever pivoted intermediate of its ends to said frame, a member slidably arranged on said frame and pivotally connected with the lower end of said lever, a roller journaled in said memher and adapted to rest on the material on said plate, and adapted to be moved forward and backward thereon, and means on said. lever for regulating the distance the roller moves on said plate and means for determining the position of said roller on said. plate at a given time.

7. In a combing machine, a nipper frame pivotally attached thereto, a plate rigidly attached to said frame upon which the material to be combed rests, a lever pivoted intermediate of its ends to said frame, a

member slidably arranged on said frame and pivotally connected with the lower end of said lever, a roller ournaled in said member and adapted to rest on the material on said plate, and adapted to be moved forward and backward thereon, and means on said lever for regulating the distance the roller moves on said plate and means for determining the position of said roller on said plate at a given time, and means on said roller cooperating With means on said member whereby the roller is prevented from rotation on its forward movement and permitted to rotate on its backward movement.

In testimony whereof I have aflixed my signature in the presence of two witnesses.

J. W. NASMITI-I. Witnesses 7 JOHN TILLIAM THOMAS, EWALD S. MOSELEY. 

